Identical twins Elizabeth and Jessica think the Mercandy mansion is haunted and that new student Nora Mercandy might be a witch, but Elizabeth wants to find out if the rumors are true.

"Mallory knows she's a good baby-sitter. She's been looking after her seven younger brothers and sisters for years. So when Kristy offers her a steady job baby-sitting for the Arnold twins, Mal thinks it'll be easy money. The twins sure are cute in their matching outfits. But once Mrs. Arnold leaves, Marilyn and Carolyn turn into twin terrors! They trick Mallory so that she can't tell them apart and they act like spoiled brats. Taking care of Marilyn...

When twins Elizabeth and Jessica Wakefield are forbidden to go to a Johnny Buck concert, Jessica comes up with a plan to sneak out of the house and attend.

Twin homeless orphans Elliot and Liza take part in the Raven Quests--magical tasks that when completed promise the victors untold riches--but when a quest goes terribly wrong and Liza is poisoned, Elliot sacrifices everything to find the cure.

Isabel and Jane are the Extraordinary Peabody Sisters, conjoined twins in a traveling carnival freak show--until an ambitious surgeon tries to separate them and fails, causing Jane's death. Isabel has lost an arm and a leg but gained a ghostly companion: Her dead twin is now her phantom limb. Haunted, altered, and alone for the first time, can Isabel build a new life that's truly her own?

"Izzy's sister has been acting strange. Izzy knows that something is going on with her twin, Grace; hurrying off to hang with other kids, avoiding her at school, and going to bed earlier than usual. When Izzy learns that her twin sister has been sneaking off at night to hang out with the mysterious Midnight Society, she surprises them at their night of storytelling and threatens to tell their parents about Grace's new hobby. But in order to prevent...

"Senri Nakajou's twin brother was his everything, the one who protected him from their abusive father, the one whose pain he felt as his own. That is, until the day thirteen years ago when Senri's entire family was murdered before his eyes. He couldn't have cared less about his parents, but without his brother, his world ended. Ever since, finding the killer and making him pay has been Senri's only goal...and now-finally-he's caught a glimpse of a...

Twelve-year-old twin adventurers Cleopatra and Alexander Dodge are reunited with their father and realize that two family heirlooms reveal the location of a treasure that is their birthright.

A graphic novel collection features four strange stories from the sleepy town of Gravity Falls. The first story, Face it, is about Pacifica summoning a monster who steals Mabel's face. The second story, Comix up, is about Stan getting trapped in a world of comics. In Don't dimension it, Mabel gets pulled into a multi-verse filled with many different Mabels. And in Pines Brothers: the Jersey Devil's in the details, a young Stan and Ford attempt to...

"Exiled from their home planet, shape-changing alien heroes Jayna and Zan (she can morph into any animal, and he can turn into any form of water) must navigate life as students at Morris High School, where they're even bigger outsiders than the normal awkward teens they try to befriend. Under the watchful eye of Superman, the brother-and-sister duo pull monitor duty at the Hall of Justice as interns, where they face Superman's impish foe Mr. Mxyzptlk...